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Installing Interlock Circuit
To use the interlock function, the M9614A/M9615A interlock terminals must be
connected to the interlock circuit installed in the measurement environment such
as the shielding box. The interlock circuit is a simple electric circuit as shown in
Figure
closes when the door is closed.
The M9614A/M9615A module cannot apply high voltage over the limit when the
interlock terminals are open. The limit value, or the Interlock threshold voltage
level is programmable, within 42 V. The interlock circuit is not necessary for the
M9614A/M9615A because the maximum output voltage is 30 V, but can be used
to limit the output voltage to the specified value. If you set the threshold level to
0 V, the interlock function will be same as inhibit control.
You can specify the threshold level by using the M960x PXIe Source Measure Unit
Soft Front Panel. Select M960x Settings... from the Utilities menu, and type the
value into the box.
For information on setting the threshold level by programming, refer to the driver
references.
Figure 1-5
Do not connect the interlock terminals to anything other than the interlock
circuit. Applying current or voltage to the terminals may damage the
M9614A/M9615A.
Keysight M9614A/M9615A Startup Guide, Edition 1
1-5. The circuit electrically opens when the access door is opened, and
Interlock Circuit
Shielding box
Access door
Mechanical switches
Installing Interlock Circuit
Connector-terminal
Interlock low
(Frame/chassis)
BNC
Interlock high
Ferrule terminal
Keysight PX0101A-001 or equivalent
Insulator
block
29
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